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Concatemer solid blade pouring system and concatemer solid blade pouring method

A technology of pouring system and pouring method, which is applied to casting molding equipment, molds, cores, etc., and can solve problems such as fast solidification speed and restricted casting qualification rate

Active Publication Date: 2020-09-15
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. The lower edge plate is thinner, the solidification speed is faster, and it is easy to form a heat knot at the R angle of the air intake edge
Greatly restricts the improvement of the qualified rate of castings

Method used

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  • Concatemer solid blade pouring system and concatemer solid blade pouring method
  • Concatemer solid blade pouring system and concatemer solid blade pouring method
  • Concatemer solid blade pouring system and concatemer solid blade pouring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, in this embodiment, a multi-unit solid blade pouring system includes a blade casting mold, a runner arranged on the blade casting mold and communicated with the blade casting mold, and a sprue 6 arranged on the runner. The blade casting mold includes an inner edge plate mold 1, an outer edge plate mold 2 and several blade molds 3 arranged between the inner edge plate mold 1 and the outer edge plate mold 2, and the outer side of the inner edge plate mold 1 is arranged There is an inner hook mold 4, and two outer hook molds 5 are arranged on the outer side of the outer edge plate mold 2, and the runner includes a runner 7, an inner runner 8 arranged under the two ends of the runner 7, and an outer runner. 9, the inner runner 8 communicates with the inner edge plate mold 1, and the outer runner 9 communicates with the outer edge plate mold 2.

[0028] When pouring, the blade pouring mold is placed horizontally, so that the inner edge plate mold ...

Embodiment 2

[0030] Such as figure 2 As shown, on the basis of the above embodiments, in this embodiment, the cross-sectional area of ​​the ingate 8 and the outgate 9 by the horizontal plane decreases gradually from top to bottom.

[0031] During the cooling process, the liquid in the inner runner 8 and the outer runner 9 can cool down in a gradient manner, reducing the cooling rate of the top liquid in the inner runner 8 and the outer runner 9, thereby strengthening the inner runner 8 and the outer runner. 9 The feeding capacity of the inner liquid is beneficial to reduce the shrinkage and shrinkage of the inner and outer edge plates.

[0032] In this embodiment, the bottom of the inner sprue 8 is provided with an inner subsidy mold 10 communicating with the top of the inner hook mold 4 and the outer surface of the inner edge plate mold 1 .

[0033] Utilizing the inner subsidy mold 10 can increase the outlet area of ​​the inner sprue 8, thereby facilitating the flow of liquid, and becau...

Embodiment 3

[0039] Such as figure 2 , image 3As shown, on the basis of the above-mentioned embodiments, in this embodiment, at least one hook subsidy mold 12 is arranged between the outer hook mold 5 and the outer hook mold 5, and the hook subsidy mold 12 is connected with the two outer hook molds respectively. 5 connected.

[0040] Utilizing the hook subsidy mold 12 to communicate with the two outer hook molds can make the liquid flow from the upper outer hook mold 5 to the lower outer hook mold 5, which is convenient for feeding the lower outer hook and prevents the lower outer hook from forming shrinkage cavities. Utilizing the hook to subsidize the mold 12 can increase the strength and rigidity of the outer edge plate mold 2 and prevent the deformation of the outer edge plate mold 2 from affecting the shape accuracy of the product.

[0041] In this embodiment, the hook subsidy mold 12 is set obliquely. The inclination angle of the hook subsidy mold 12 is consistent with the blade...

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Abstract

The invention discloses a concatemer solid blade pouring system and a concatemer solid blade pouring method. The concatemer solid blade pouring system comprises a blade pouring mold, a pouring gate arranged on the blade pouring mold and communicating with the blade pouring mold, and a pouring opening formed in the pouring gate. The blade casting mold comprises an inner edge plate mold, an outer edge plate mold and a plurality of blade molds arranged between the inner edge plate mold and the outer edge plate mold, an inner hook mold is arranged on the outer side of the inner edge plate mold, and two outer hook molds are arranged on the outer side of the outer edge plate mold. The pouring gate comprises a transverse pouring gate body, an inner pouring gate body and an outer pouring gate body, wherein the inner pouring gate body and the outer pouring gate body are arranged below the two ends of the transverse pouring gate body, and the cross-sectional areas of the inner pouring gate bodyand the outer pouring gate body by the horizontal plane are gradually reduced from top to bottom. The concatemer solid blade pouring system has the beneficial effects that the blade casting mold is transversely placed and simultaneously cast from the two ends, and double feeding channels can be formed, so that the casting and feeding distance is shortened, and the feeding amount of the blade casting mold is increased, thereby realizing the function of eliminating shrinkage porosity and shrinkage cavity.

Description

technical field [0001] The invention relates to the technical field of pouring, in particular to a pouring system and a pouring method for conjoined solid blades. Background technique [0002] The main functions of a good gating system are: 1) Control the speed of filling the mold with molten metal and the time required to fill the mold, so that the molten metal can enter the mold smoothly, avoiding turbulence and erosion of the mold; 2) Control the temperature field of the casting to avoid the formation of defects such as shrinkage and porosity. The structural design of gating system is very important. [0003] The concatenated guide vanes used for gas turbines have the following characteristics: 1. The wall thickness of the blade body is relatively large, and it is a conjoined guide vane. hot festival. 2. The throat width of the blades in the quadruple guide vanes is small, and the shell making is easy to form an integral and thicker shell between the blades, which incr...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/08
CPCB22C9/22B22C9/082
Inventor 史卫杰郭雄陶飞曾洪赵代银王海洋伍林李林蓄杨照宏杨功显
Owner DONGFANG TURBINE CO LTD
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